# coding: utf-8
import os

path = 'D:/wks_python/future_live_data/stock/OMD_2016-02-01_to_2016-02-29/'
filelist = os.listdir(path)

for f in filelist:
    num_lines = sum(1 for line in open(path + f))
    if num_lines == 1:
        print f
